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Entry Test MCQ :: Logarithm

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1.  If log10 36 = y what does log10 36000 equal?
A. y B. y+1000
C. 1000 D. y+3
E. y+1    

2.  If log10 2 = x and log10 3 = y find the value of log10 80?
A. y+1 B. x+y
C. x-y D. x+2y
E. none    

3.  Solve for a : log (a+3) = loga+log3
A. 1 B. 3?2
C. 2?3 D. 6?5
E. none    

4.  Evaluate log16 ?56 - log16 ?14
A. 0 B. 1?4
C. 1 D. 3
E. 1?3    

5.  Evaluate log9 3 - log5 125 + log625 5 - log7 (343)1/3
A. 0 B. 1?3
C. 3?28 D. ?13?4
E. none    

6.  If Log10 G= 1/5 then log10 100G5=?
A. 7 B. 1?4
C. 4 D. 11?4
E. 3    

7.  If Logy 6=x logy 3.5 = z and 6a = 3.5 then a = __________
A. xz B. z/x
C. x+z D. z-x
E. not determined    

8.  If g(x) = log2 y then g(3y) - g(y) = ___________
A. log(2/x)+log2x B. log2 (2+x2)/x
C. 1 D. log23
E. log3-log2    

9.  If log5 p = ?8 and log 8 q = ?5 then pq = _________
A. 5?8.8?5 B. 13?13
C. 3?3 D. 7?2
E. 0    

10.  If log64 7 = x log4 7 then x = __________
A. 4 B. log43
C. 3 D. 1?4
E. log464    




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